地球的力量 第2集 大气(25)加快全球变暖

In a few places, Like along riverbanks and cliffs.

在某些地方，比如河畔和悬崖旁

where the land slips away it exposes this, thepermafrost.

把雪扫开，就能发现它，永久冻土

It's nice to get my hands on it.

把手放在上面感觉很棒

If s just soil stuffed full of plants, stuffed full of carbon

就是泥土充满植物，充满碳

and frozen in ice.

以及被雪冻住

And although it might not look very interesting,

虽然看起来不是很有趣

this stuff is really important for our atmosphere.

这种材料对我们的大气层很重要

That's because sealed in the permafrost is methane.

因为这些被封住的永久冻土

The danger is if the permafrost was to melt as a result of global warming,

如果冻土因为全球变暖而融化

it could release methane on a massive scale.

释放出大量甲烷会导致危险

This would dramatically accelerate global warming.

会显著加快全球变暖

Worryingly, here in Siberia,

让人很担忧，在西伯利亚

there are signs the permafrost is already starting to melt.

永久冻土开始融化的征兆开始显现

Temperatures are rising faster here than anywhere else on the planet.

在此地的温度上升速度比全球任意地方要快

Although you'd never know it.

尽管你之前从未见过